Diesel Fuel Consumption Challenge - Free T4 Session - Help Others Reduce Fuel Bills - Page 5

Frank Incensed · 11th May 2013, 09:21

Even if it often isn't what I'm after.

I'll leave this running a couple more days, then pick 2 people who have responded and make them an offer.

hogweed · 11th May 2013, 10:42

Quote:

Originally Posted by marinabrian

Mine I've found to be accurate to within 1/2 MPG from brim to brim tests

Mine too. Always.

Quote:

Originally Posted by Frank Incensed

It doesn’t matter how much wellie I give it, there will only be 1 or 2 mpg difference in fuel consumption.

AND, though I say it through gritted teeth because it SO shouldn't be true, I find exactly the same. The things which DO drastically affect my consumption are only two, and both very simple:

1. Lots of journeys with the engine cold (drastic reduction in mpg)
2. My regular commute since I started a new job at the bottom of a very long hill. Driving up and down long hills all the time takes 3-4mpg off.

And yes, if I drive around on flat, empty roads, changing gear at 1500rpm and never exceeding 50mph, I can scrape 50mpg. I’ve tried it a couple of times just for a laugh – you have to drive as if you have no brakes, ie very very slowly, and lifting your foot about half a mile before you think you might have to stop.

bassman · 11th May 2013, 17:04

Quote:

Originally Posted by T-Cut

I bet he will: http://forums.mg-rover.org/showthread.php?t=507727
I've given him a heads-up.

TC

How can I refuse.....but I had my MAF changed a few months ago, and during that period I experienced some low results, although most of them were still over 40mpg...MarinaBrian diagnosed my faulty MAF, and did an XPower upgrade at the same time.....Ive just altered the algorithm which supposedly equalises the OBD MPG and Brim to Brim MPG, but havent had the chance to fill up again since.

EDIT...Ive read the whole thread now, and realise my results may be no good, as I reset my OBD every time i fill up....I like to see what I am getting in real time, rather than a long term average....Although I could start again and not reset if required.

NigelOBB · 11th May 2013, 18:12

Quote:

Originally Posted by hogweed

Mine too. Always.

AND, though I say it through gritted teeth because it SO shouldn't be true, I find exactly the same. The things which DO drastically affect my consumption are only two, and both very simple:

1. Lots of journeys with the engine cold (drastic reduction in mpg)
2. My regular commute since I started a new job at the bottom of a very long hill. Driving up and down long hills all the time takes 3-4mpg off.

And yes, if I drive around on flat, empty roads, changing gear at 1500rpm and never exceeding 50mph, I can scrape 50mpg. I’ve tried it a couple of times just for a laugh – you have to drive as if you have no brakes, ie very very slowly, and lifting your foot about half a mile before you think you might have to stop.

I would say most of my driving is local and engine never really gets a chance to heat up and my figures are comparable with others.. What the op said is true you can have two identical cars come off the line together and yet the performance can be worlds apart.

FROGGY · 11th May 2013, 18:47

Very happy that I'm not driving one of the fuel guzzlers.
Won't say what I get, but I'd change the car if my overall was less than 50MPG.

Frank Incensed · 11th May 2013, 18:54

Quote:

Originally Posted by FROGGY

Won't say what I get, but I'd change the car if my overall was less than 50MPG.

Well I definitely wouldn't pay your travel expenses, even if it did 100 mpg!

Sorry - you're excluded.

bassman · 11th May 2013, 19:27

Quote:

Originally Posted by Frank Incensed

Sorry - you're excluded.

.....and me?

Frank Incensed · 11th May 2013, 20:21

Quote:

Originally Posted by bassman

.....and me?

Not ruling you out - yet.

ceedy · 13th May 2013, 14:28

Having just got back with the ZT CDTI Auto from the Nano.at the weekend
back to Somerset.

My normally everyday reading of 33-35 MPG, mostly B roads..

went up to 41.5 mpg,( cruzin' @ 70) but will be back to the 35's in the next week or so

. ( car is presently bog standard) ..

C

peelaaa · 13th May 2013, 15:14

Just had the clutch replaced on my cdti tourer. While it was done had the thermostat replaced too. The car has been running low temperature at about 70C and was never at half point on dial. Fuel consumption had dropped from approx 50 average (when thermostat was showing correct reading) to 42 max. Engine always sounded rough too at this low temperature.

I haven't had a chance to do a full mpg test yet but have noticed the electronic readout is definately higher then before thermostat change and engine seems smoother.

Will update mpg when i get a chance.

11th May 2013, 09:21	#41
Frank Incensed Ex 75 Owner 75 Tourerless Join Date: Jul 2010 Location: Manchester Posts: 2,147 Thanks: 60 Thanked 156 Times in 93 Posts	Thanks - I Value Your Input Even if it often isn't what I'm after. I'll leave this running a couple more days, then pick 2 people who have responded and make them an offer. __________________ Beyoncé's Green Light Used More Rubber 355188 of 355194

11th May 2013, 18:47	#45
FROGGY I really should get out more....... MG ZT CDTI Join Date: Sep 2007 Location: 17500 REAUX, CHARENTE-MARITIME Posts: 2,749 Thanks: 2 Thanked 133 Times in 90 Posts	How few? Very happy that I'm not driving one of the fuel guzzlers. Won't say what I get, but I'd change the car if my overall was less than 50MPG. __________________ http://i200.photobucket.com/albums/a...ps628d4119.jpg IN THE BLACK NOW

13th May 2013, 14:28	#49
ceedy This is my second home All Trophy Blue ,ZT260#50 , ZT CDTI Auto, ZR105+ and 1.8T Firefrost spoiling the Set . Join Date: Nov 2006 Location: Nr Sherborne But in Somerset.. Posts: 6,075 Thanks: 916 Thanked 1,214 Times in 768 Posts	Having just got back with the ZT CDTI Auto from the Nano.at the weekend back to Somerset. My normally everyday reading of 33-35 MPG, mostly B roads.. went up to 41.5 mpg,( cruzin' @ 70) but will be back to the 35's in the next week or so . ( car is presently bog standard) .. C __________________ The Three Bloo's Wifey's Zr105, MY CDTI & 260 #50 and Number One sons 1.8T in Firefrost When I were a lad Zero to 142 in 10.25 secs at the Pod on my Blown Norton. 210 Kart Champ in 70's

13th May 2013, 15:14	#50
peelaaa Posted a thing or two 75 cdti 2004 contemporary Join Date: Apr 2008 Location: meath Posts: 1,551 Thanks: 272 Thanked 80 Times in 58 Posts	Just had the clutch replaced on my cdti tourer. While it was done had the thermostat replaced too. The car has been running low temperature at about 70C and was never at half point on dial. Fuel consumption had dropped from approx 50 average (when thermostat was showing correct reading) to 42 max. Engine always sounded rough too at this low temperature. I haven't had a chance to do a full mpg test yet but have noticed the electronic readout is definately higher then before thermostat change and engine seems smoother. Will update mpg when i get a chance.